Lifting and dropping gate.



PATENTED APR. 14, 1903;

A. OLAWSON. LIFTING AND DROPPING GATE.

APPLIGATION FILED AUG. 5, 1902.

N0 MODEL.

WITNESSES.

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U ITED STATES PATENT Orricn.

AQUILLER OLAWVSON, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONEHALF TO JOSEPH E. EASTBURN, OF CHICAGO, ILLINOIS.

LIFTING AND DROPPING GATE.

SPECIFICATION forming part of Letters IEatent No. 725,043, dated April 14, 1903..

Application filed August 5, 1902. Sierial No. 118,445. (No model.)

ing drawings, and to the letters of reference marked thereon, which form a part of this specification.

The invention relates to gates which are raised to allow vehicles to pass under them and then lowered into place by suitable mechanism.

The special object of the invention is to so improve this class of gates that they may be conveniently operated by the driver without leaving his seat on the vehicle.

Figure 1 of the drawings is a plan view of the gate and its appurtenances, and Fig. 2 a side elevation of the same. Fig. 3 is a section on line a: m of Fig. 2.

In the drawings, A represents the top, B thebottom, and O O the side posts of the frame, of my gate. The latteris movable up and down in grooves o c of the posts and is preferably provided with balance or counter weights D D, connected with the top rail of gate by cords d d, pulleys ee, and loops ff.

E is a cross-bar, made fast to the top bar A, at the middle thereof and at right angles thereto.

G is the gate, between whose uprights g g are fulcrumed two oppositely-placed levers H H, which are supported in front by the rest I on the top rail of gate, while the other ends are sustained by the catches J between the sides of the posts 0. In that position the gate is upheld while the vehicle passes under it. The front ends of the lovers H are connected by a cord h, which passes through a ring it, the latter being connected by two cords 71 h which pass over a middle pulley K and then in opposite directions over the end pulleys L L, the said pulleys being ar ranged on their hearings in holes of the crossbar E. The latter being made to point up and down the road, the gate may be conveniently raised by persons coming from opposite directions. A pull on one of the cords h will carry the gate up to the top of frame when the cord is let go. This causes the levers H H to lock on the rests J J and hold the gate up securely while the vehicle is passing thereunder. Then the opposite cord is pulled up to unlock the levers and is held taut while the gate is gradually lowered into its place. What I claim as new, and desire to protect by Letters Patent, is

1. The combination with a lifting and dropping gate, of the two levers H H, each having a front rest I on thegate and a rear catch in a vertical groove of the gate-frame substantially as shown and described, for the purpose set forth.

2. The combination with a lifting and dropping gate, having the uprights g g, of the levers H H, cord h, ring it, cords 71.2 7?, the frame-bar A, cross-bar E and pulleys L K L, all arranged substantially as shown, for the purpose specified.

In testimony whereof I affix my signature in presence of two witnesses.

AQUILLER OLAWSON. 

